I dont know if we already have this thread...but i hate to see such beautiful cars taken with crappy photos it just breaks my heart...so to those people who take excellent photos of your cars please share us how you do it...

What do you mean by specific day? I decided to go to the state park on this day and it happened to be extremely foggy. Less than 100ft visibility. In general just follow the usual suggestion of shooting in the evening and try to avoid when the sun is high in the sky.

I uploaded these pictures before but I am just enjoying this car so much that I need to share again.And few tips as well.
sigma 10-20mm
studio strobes as many as you can get(it's never too many)
Off camera flash
reflector
Dark spot away from street lights with working plug for your lights
or portable battery for them( I always shoot in the dark ..that way I am in total control of the light)
Camera set between f14-18 at iso 100
tripod (if you don't have enough lights you might need to stack couple of images )
feel free to ask for some more